MCMedicalCodingSoftware
K91.0

K91.0: Vomiting following gastrointestinal surgery

Billable / specific codeICD-10-CM

K91.0 is a billable, specific ICD-10-CM code for vomiting following gastrointestinal surgery. It is valid for submission on a claim.

Check K91.0 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above K91.0

Not part of this code, but both may be coded when both are present.

Written on K91: Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified

  • complications of artificial opening of digestive system (K94.-)
  • complications of bariatric procedures (K95.-)
  • gastrojejunal ulcer (K28.-)
  • postprocedural (radiation) retroperitoneal abscess (K68.11)
  • radiation colitis (K52.0)
  • radiation gastroenteritis (K52.0)
  • radiation proctitis (K62.7)

Other codes that can never be billed with K91.0

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • R11Nausea and vomiting

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

K91.0 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56421Billing and Coding: CT of the Abdomen and Pelvis

Alphabetic index entries that lead here

  • Vomiting›following gastrointestinal surgery
  • Vomiting›bilious›following gastro-intestinal surgery
  • Complication›gastrointestinal›postoperative›vomiting after GI surgery

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under K91

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.